Improved
Dataset push: multi-format uploads (Excel, JSON/NDJSON, Parquet, TSV, gzip)
November 9th, 2026
Dataset push now accepts more than CSV. When you send data to a dataset through create or Upload Data, you can upload Excel (.xlsx), JSON, NDJSON/JSONL, TSV, and Parquet files, in addition to CSV. Any of these formats can also be uploaded gzip-compressed.
Larger text files are supported, and the upload step detects your file's format automatically while still letting you set the format and header rows during setup. Excel and Parquet uploads have lower size and row ceilings than text formats, and the older .xls format is not supported — save Excel files as .xlsx.